March 8, 2018

Slight PM 2.5 across nation

Air quality today mostly stayed in the Code Yellow (Moderate) range of PM 2.5, with some Code Orange (Unsafe for Sensitive Groups) appearing on the border between Montana and Canada. The rest of the Code Yellow was concentrated in the southern Plains States, the Mississippi Valley, the Southeast, and southern California (AirNow, top left). The elevated PM 2.5 was mostly due to smoke from wildfires in the Southeast, which can be seen in NOAA's HMS map, top right. The smoke in this area could not really be seen, as most of the smoke was made of light plumes (NASA MODIS Terra, bottom left.) .

Posted by mglover at March 8, 2018 8:43 PM
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